i2c: amd-mp2: clean up amd_mp2_find_device()

Rename the driver data pointer for consistency with the rest of the
driver and drop a redundant cast.

Signed-off-by: Johan Hovold <johan@kernel.org>
Reviewed-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Link: https://lore.kernel.org/r/20251210040258.60106-1-johan@kernel.org
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>

Author: jhovold

drivers/i2c/busses/i2c-amd-mp2-pci.c

@@ -456,18 +456,20 @@ module_pci_driver(amd_mp2_pci_driver);
 
 struct amd_mp2_dev *amd_mp2_find_device(void)
 {
+	struct amd_mp2_dev *privdata;
 	struct device *dev;
 	struct pci_dev *pci_dev;
-	struct amd_mp2_dev *mp2_dev;
 
 	dev = driver_find_next_device(&amd_mp2_pci_driver.driver, NULL);
 	if (!dev)
 		return NULL;
 
 	pci_dev = to_pci_dev(dev);
-	mp2_dev = (struct amd_mp2_dev *)pci_get_drvdata(pci_dev);
+	privdata = pci_get_drvdata(pci_dev);
+
 	put_device(dev);
-	return mp2_dev;
+
+	return privdata;
 }
 EXPORT_SYMBOL_GPL(amd_mp2_find_device);